Abstract: An ultrasonic transducer having an ultrasonic conducting element with a plurality of arms extending from a common junction with some of the arms being provided with ultrasonic generators, at least one other arm carrying a bonding tool, especially for bonding a conductor to a chip and at least two of the arms including a straight angle of 180° with one another.

Abstract: In the forms of a flip-chip package in which the contact elements of the chip are ultrasonically welded to the contact elements of the substrate, either the chip or the substrate or both are provided, prior to juxtaposition, with a bonding material which can be ultrasonically activated. During the ultrasonic welding process in which the contact elements of the chip and substrate are bonded together, the bonding material provides an additional attachment between the chip and substrate and eliminates the need for underfilling.

Abstract: A seating unit in a combat vehicle that is protected against mines is provided. The vehicle has a hull that is disposed on the chassis and that has at least one hatch in its roof plate that can be closed off by a hatch cover. The seating unit, which is disposed in the hull in the region below the hatch, is provided with a base on which is disposed a seat and that is suspended on the front or side wall and/or the roof plate of the hull via a tubular construction in such a way that the base is not at less than a prescribed spacing relative to the base of the hull. The tubular construction can comprise two guide tubes that extend parallel to one another and upwardly at an angle. The upper ends of the tubes are connected with the front wall, and the lower ends are suspended on the roof plate via connecting tubes. The base is displaceably disposed on the guide tubes via holding devices.

Abstract: An assembly for electrically connecting a part rotatable about an axis with a relatively stationary part has an elongated multiconductor flat ribbon having a pair of ends and wound in a spiral around the axis. One of the ends is secured to the rotatable part and the other of the ends is secured to the stationary part. The flat ribbon is comprised of a flat elongated tape and a plurality of parallel conductive traces on the tape extending between the ends. The traces are flat strips with a width dimension parallel to the width dimension of the tape. The tape is nonconductive so that the traces are electrically isolated from one another.

Abstract: An ultrasonic transducer having an ultrasonic conducting element with a plurality of arms extending from a common junction with some of the arms being provided with ultrasonic generators, at least one other arm carrying a bonding tool, especially for bonding a conductor to a chip and at least two of the arms including a straight angle of 180° with one another.

Abstract: In the forms of a flip-chip package in which the contact elements of the chip are ultrasonically welded to the contact elements of the substrate, either the chip or the substrate or both are provided, prior to juxtaposition, with a bonding material which can be ultrasonically activated. During the ultrasonic welding process in which the contact elements of the chip and substrate are bonded together, the bonding material provides an additional attachment between the chip and substrate and eliminates the need for underfilling.

Abstract: A seating unit in a combat vehicle that is protected against mines is provided. The vehicle has a hull that is disposed on the chassis and that has at least one hatch in its roof plate that can be closed off by a hatch cover. The seating unit, which is disposed in the hull in the region below the hatch, is provided with a base on which is disposed a seat and that is suspended on the front or side wall and/or the roof plate of the hull via a tubular construction in such a way that the base is not at less than a prescribed spacing relative to the base of the hull. The tubular construction can comprise two guide tubes that extend parallel to one another and upwardly at an angle. The upper ends of the tubes are connected with the front wall, and the lower ends are suspended on the roof plate via connecting tubes. The base is displaceably disposed on the guide tubes via holding devices.

Abstract: Nickel- and vanadium-containing catalysts or combustion residues from petroleum treatment are combined with alkali metal carbonates and/or chlorides and the resulting mixture is melted in the presence of a sulfur carrier with or without carbon which serves to reduce the sulfur to a sulfidic form, a high vanadium, low nickel slag segregating from a high nickel, low vanadium matte. The matte and slag can be separately tapped and the matte is treated metallurgically to recover nickel while the slag is leached and is thus treated hydrochemically to recover valuable vanadium compounds.

Abstract: A hydraulic tensioning device for tracked vehicles comprising a hydraulically chargeable piston-cylinder unit, coupled on one end with the body of the vehicle, and with the other end to a guide wheel for the track chain which is supported on a rocker arm. In order to obtain the proper track chain tension in any operating condition without providing a separate hydraulic pump, the piston unit is equipped with a tappet supported against the piston unit by means of a spring unit. The tappet closes off a secondary cylinder chamber in the piston unit which is connected with the principal cylinder chamber by two check valves which seal in opposite directions. The tappet effects a pumping action as the result of the vibration generated by the chain links running in and out the guide wheel, thereby pumping the hydraulic oil from a hydraulic oil reservoir into the secondary cylinder chamber and from there into the principal cylinder chamber.

Abstract: Nickel- and vanadium-containing catalysts or petroleum treatment of combustion residues are combined with alkali metal carbonates and/or chlorides and the resulting mixture is melted in the presence of a sulfur carrier with or without carbon which serves to reduce the sulfur to a sulfidic form, a high vanadium, low nickel slag seggregating from a high nickel, low vanadium matte. The matte and slag can be separately tapped and the melt is treated metallurgically to recover nickel while the slag is leached and is thus treated hydrochemically to recover valuable vanadium compounds.

Abstract: A method of treating high vanadium solid petroleum residues which tend to become environmental pollutants when disposed of in landfills in which the residue is fused with sodium carbonate, sodium sulfate and/or sodium chloride and the resulting melt material is treated with an aqueous phase which can contain sodium carbonate to form a vanadate solution from which ammonium polyvanadate, sodium ammonium vanadate or ammonium metavanadate can be precipitated.

Abstract: A rotary shock absorber whose rotor and stator have interfitting annular disks or coaxial cylinders and which receives a dilatant copolymer dispersion. The shock absorber is especially effective for use between a support arm and wheel for the track of a tracked vehicle.

Abstract: Divisible tablet having controlled and delayed release of the active substance and consisting of a compact that is optionally provided with a coating and is formed by at least one active substance in an adjunct composition that effects a delayed and controlled release of the active substance and optionally one or more additional adjunct compositions that optionally contain active substances and are arranged in longitudinal layers, the compact being of an oblong shape in which the ratio of length to width to depth is approximately 2.5 to 5: approximately 0.